What two numbers multiply to -630 and add up to -61?




Here we answer the question: "What two numbers multiply to -630 and add up to -61?"

The answer to your question is:

-70 and 9


Below we illustrate and prove that -70 and 9 multiply to -630 and add up to -61:

-70 × 9 = -630
-70 + 9 = -61

Are you asking because you are trying to figure out how to factor the following quadratic equation?

x2 - 61x - 630 = 0

If so, the solution to factor the quadratic equation above is:

(x - 70 ) (x + 9)

To summarize, since -70 and 9 multiply to -630 and add up -61, you know that the following is true:

x2 - 61x - 630 = (x - 70 ) (x + 9)


Multiply To One Number and Add Up To Another
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